package JDBC;
//UPDATE
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws Exception {
        Class.forName("com.mysql.cj.jdbc.Driver");
        //2
        Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root", "root");

        Statement statement = connection.createStatement();
        String sql = "UPDATE userinfo " +
                     "SET nickname='ooooo' " +
                     "WHERE username='ll' ";
        int num = statement.executeUpdate(sql);
        if (num>0){
            System.out.println("修改成功");
        }else {
            System.out.println("修改失败");
        }
        connection.close();
    }

}
